You've come face to face with the exact reason why I've been telling everyone who'll listen that Bose is a company that's totally lacking in business ethics and morals and doesn't deserve anyone's money. The fact that they use "proprietary" connections to prevent people from using their products in any way that involves products from any other companies other than Bose is clear-cut evidence of what I've been complaining about for many years now. Most people "bash" Bose for strictly performance reasons ... their products simply don't perform anywhere near well enough to justify the prices they charge. To me, their marketing decisions paint a far more distressing picture.

I have to agree with ThisGuy and recommend that you dispose of the Bose speakers and buy something from a company that isn't so greedy as to use connections that are less than "standard" in an attempt to lock the consumer into using strictly their brand and no other. Shameful way for any company to behave, IMO.